BIKERELIABILITY Reg check
League table/ KEEWAY/TX 125 E4
Model report · 2005–2025

KEEWAY TX 125 E4

125cc Petrol Class 1
#5116 of 5428 overall #16 of 23 KEEWAYs #573 of 734 commuter bikes
62.9%
first-time pass rate
25.4%
failed outright
6,144
median miles at test
547
MOT tests, 2005–2025
-11.7pp
vs expected · age & mileage

The pass rate is the MOT first-time pass: a roadworthiness check of the items an MOT covers (brakes, lights, tyres, steering, structure, emissions), not a full mechanical inspection of engine or gearbox internals. It is a reliability signal, not a complete measure of mechanical reliability. What this measures.

“vs expected” adjusts for age, mileage and test class, so a cherished classic and a hard-used commuter are compared fairly. How this works.

Pass rate over time

first-time pass rate by test year · 2021–2025

The TX 125 E4's first-time pass rate has fallen 6.2 points since 2021, 68.1% to 61.9%.

56%63%70%2021: 68.1% pass (72 tests)2022: 67.7% pass (99 tests)2023: 58.8% pass (119 tests)2024: 61.1% pass (126 tests)2025: 61.9% pass (113 tests)20212025

What fails on a TX 125 E4

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lamps and reflectors
147 38.3 10.8×
structure and attachments
74 19.3 14.9×
brakes
65 16.9 1.9×
suspension
50 13 9.7×
steering
25 6.5 9.7×
tyres
10 2.6 2.7×
audible warning (Horn)
9 2.3 9.0×
wheels
4 1 12.2×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the TX 125 E4 beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

YAMAHA YBR 125 71.0% pass · 125k tests Compare head-to-head →
HONDA CG125 72.2% pass · 89.3k tests Compare head-to-head →
HONDA CBF125 73.3% pass · 84.4k tests Compare head-to-head →
GILERA RUNNER 70.8% pass · 69.9k tests Compare head-to-head →

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the TX 125 E4.

Compare with any bike

rival not listed above? pick any model to see it head-to-head with the TX 125 E4

More KEEWAY models

other KEEWAY bikes ranked by MOT pass rate
KEEWAY SUPERLIGHT 63.5% pass · 9,217 tests
KEEWAY RK 63.3% pass · 2,401 tests
KEEWAY TX 58.1% pass · 1,433 tests
KEEWAY HURRICANE 59.2% pass · 1,320 tests
KEEWAY SUPERLIGHT 125 E5 68.4% pass · 1,113 tests
KEEWAY RKS 125 STD 66.3% pass · 922 tests

See all KEEWAY models →

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2020 (68.5% pass). Weakest: 2017 (58.2%).

56%63%71%2017: 58.2% pass (67 tests)2018: 62.8% pass (188 tests)2019: 59.4% pass (128 tests)2020: 68.5% pass (92 tests)2021: 66.7% pass (72 tests)201720192021

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.

KEEWAY TX 125 E4 FAQ

answers computed from the data above · terms in the glossary

Is the KEEWAY TX 125 E4 reliable?

The KEEWAY TX 125 E4 is less reliable than average for its class: 62.9% of its 547 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5116 of 5428 models.

What does a TX 125 E4 fail its MOT on most?

lamps and reflectors — 38% of all defects recorded against failed TX 125 E4 tests.

What is the best year of TX 125 E4 to buy used?

By first-time pass rate, 2020-registered examples do best (68.5%) and 2017 worst (58.2%). Condition and history still trump the year.

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